hello everybody! Today I had some problems with a Infrared connection between two adruino boards. i don't want use the ken shriff librarie's. I' ve a phototransistor (2 pin) and a TSOP (3 pin). Can you help me to solve this problem?Thank a lot!!!

Depends on what you write the code to do. Given that that project appears to be able to send any data over serial, you could send "1", "two", "Tres" , and "Something A Bit Like Four", and then receive and interpret the data to know which pin to toggle.

Of course, you could make the process easier by judicious choice of what to send.